Thank you guys for all the instructions. I am going to install one. And yeah I thought of the iron one too. Not only is it appropriate as ya'll say, but my stock is a dull finish and a shiny brass patchbox would be too much. I'll finish fixing up the "womans scorn Glenfield" (<< as I call it) (see smithy for the thread) and I'll work on the patchbox for the GPR. I think it will look so good in there. This will be my first run at inlaying anything, but I have a few pieces of solid birch in the basement that I'm going to practice on first.